CoStar Group Inc annual shares outstanding for fiscal TTM was 414 million shares, a decrease of 1.7% from 421 million shares in fiscal 2025. All figures are reported results from public filings — no estimates or projections.
| Shares Outstanding (annual) | TTM → 2026-03-31 | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 | 2021-12-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 | 2006-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shares Outstanding (M) | 414M | 421M | 408M | 407M | 398M | 394M | 383M | 366M | 364M | 336M | 324M | 320M | 306M | 282M | 269M | 235M | 207M | 199M | 196M | 194M | 192M |
USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).
| Shares Outstanding (quarterly) | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 |
|---|---|---|---|---|---|---|---|---|
| Shares Outstanding (M) | 414M | 420M | 420M | 424M | 410M | 408M | 408M | 407M |
USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).
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